<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"
          name="viewport">
    <meta content="ie=edge" http-equiv="X-UA-Compatible">
    <!--对移动设备进一步友好支持-->
    <meta content="width=device-width, initial-scale=1" name="viewport">
    <title>Document</title>
    <link href="../boot/css/bootstrap.min.css" rel="stylesheet">
    <!--核心jquery js-->
    <script src="../boot/js/jquery-3.4.1.min.js"></script>
    <!--bootstrap 核心 js-->
    <script src="../boot/js/bootstrap.min.js"></script>

</head>
<body>
<span class="glyphicong glyphicon-apple"></span> 苹果
<span class="glyphicon glyphicon-grain"></span>
<button class="btn btn-primary"><span class="glyphicon glyphicon-log-in"></span> 进入</button>
<button class="btn btn-primary btn-lg">
    <span class="glyphicon glyphicon-log-out"> 登出按钮</span>
</button>
<button class="btn btn-default">
    <span class="glyphicon glyphicon-align-left"></span>
</button>
<button class="btn btn-default">
    <span class="glyphicon glyphicon-align-center"></span>
</button>

<button class="btn btn-default">
    <span class="glyphicon glyphicon-align-right"></span>
</button>

<button class="btn btn-default">
    <span class="glyphicon glyphicon-align-justify"></span>
</button>

</body>
</html>